Briquet-drier



R. s. PLUMMER.

. BRIQUET DRIER.

` APPLICATION FILED SEPT. I I, |919. l 1,352,377 l PatentedSept. 7, 1920.

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BRIQUET DRIER.

APPLICATION FILED SEPT. II, I9I9.

Patented sept. 7,1920.

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R.S..PLUMMER.

BRIQUET DRIER.

APPLICATION FILED SEPT. 11, 1919.

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l STATES PATENIT.01;-lj11lclu ROBERT S. PLUMMER, OF PHILADELPHIA, PENNSYlLVANIA, ASIGNOR IO AMERICAN BRIQUET COMPANY, OF PHILADELPHIA, PENNSYLVANIA, A CORPORATION F DELAWARE.

BRIQUET-'Duma Specification of Iietters Patent. Patented Sept, '7, 1920. I

Application led September 11, 1919. Serial No. 323,172.

To all whom i may concern.' l

Be it known that 1Rqpnr S, PLUMMER,

a citizen ofthe United-mStates, residing `at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented la new and useful Briquet-Drier, of which the following is a specification.

The principal object of the present invention is to provide for` drying briquets of coal or the like having a binder of which the base is water in such a way that the water or moisture is economically and eiiiciently removed and cariried 'off while the briquets are thoroughly dried and delivered at a temperature suiiciently low to permit of their loading and shipment on cars.

To this and other ends hereinafter set forth the invention comprises the improvevments in briquet driers to be presently described and finally claimed.

Reference will be, made to the accompanying-drawings forming part hereof and in which- Figures 1A and 1B, takenv together constitute a side elevation,

Fig. o2, is acrbss section on line 2 2 of Fig. 1A, and

Fig. 3, is a cross sectionxon line 3-3 lof Fig. 1B.

` In thedrawings 1, is a tunnel or drying chamber provided at or near one end with1 at'the edges and to promote the passage of A air through the conveyer and throughv the bed of briquets carried thereon. y It mightbe said that the conveyer and the bed of briquets divided the interior of the tunnel into upper and lower compartments separated by the, bed of briquets traveling ina horizontal direction and permeable by air ifv drawn or forced through them, and we shall see that positivelyT driven fans are provided for drawing air from the upper compartment and forcing4 it back into the lower compartment and so compelling it to travel cooling them, and is then heated-and up through the bed'of briquets lat stages. 4,

is a fan taking in air at 5, andl delivering it,

below the top of the conveyer 3, into the end of the tunnel from which the briquets escape,

and this air serves to cool the briquets so j that they may not be delivered at too high a' temperature. 6, is an air heating furnace, shown as mounted upon' the tunnel. There is a stack 7 provided with a stack valve 8, and with a damper 8a, and it communicates with the tunnel 1. The stack communicates with the inlet of the furnace 6, by a by-pass 9, having adamper l0, and with the outlet of the furnace 6, by an opening 11, having a damper 12, and with the intake 13, of a fan 14, shown as mounted oil the topof the tunnel. The outlet 15, ofthe fan 14, is shown as a flue extending down one side of the tunnel anddisoharging into the interior of the tunnel below the conveyer 3. The fan v'14,' serves to draw air through the bed of briquets cooling them prior to their delivery temprature under the traveling bed of briquets. The required temperature of the air is attained and maintained by proper manipulation of the stack valve 8, and dampers 8a, 10 and-12. The 4inlet .18, of the fan 16, ldraws air from the tunnel 1, above the conveyer 3, and discharges it by the flue 17, at the side of the tunnel, below the Icona veyer, the air and moisture finally escaping by the off-take 2.

From the foregoing description it will be understood that the briquets to be dried are fed to the conveyer 3, and travel through the tunnel, 'in the opposite 'direction to the current 4of air which passes rst'under and up through the traveling bed of briquets,

returned under the bed of briquets through which it again passes upward to be returned under the bed of briquets. by thev fan 16. The air then passes, once more upward through the bed of briquets andy leaves by the off-take 2. :,The air, therefore, at stages is introduced into vthe tunnel below and. drawn up by fans through the bedof briquets and while three such stages have be in# been described, their number may creased. By drawing the airloff from the top of the traveling bed `of briquets and and also to force air heated to the required vforcing it back under the traveling bed of briquets, by means of positively driven fans,

the proper application of heating and cooling is attained in anL economical and eicient manner.

It will be obvious to those skilled in th art to. which the invention relates that modifications mayv be made in details of construction and arrangement without departing from its spirit, hence I do not desire to limit myself in regard to such matters or otherwise than as the prior state of' the art and the appended claims may require.

I claim:

1. A briquet drier comprising in combinai tion, a tunnel, a traveling conveyer extending lengthwise of the tunnel and dividing" it into upper and lower compartments and4 adapted to carry a bed of briquets, fans and their connections for establishing a f current of air after it has been passed through the conveyer at the first stage and before it is returned at the second stage, substantially asl described.

2. A briquet drier comprising in combination, a drying tunnel, al traveling conveyer extending through the tunnel and dividin it into upper and lower compartments an adapted to carry a bed of briquets, an oftake from the upper compartment at one end of the tunnel, a fan at the other end the lower compartment, and means for heating the air prior toits introduction into the first of the fans of the series, substantially as described.

3. In a briquet drier the combination of 4a tunnel through which a current of air circulates, a traveling foraminous conveyer subdividing the tunnel into upper and lowercompartments and adapted to convey a bed of briquets through which air can be forced, and fans disposed at stages and having their inlets connected to the upper compartment and the outlets connected to the lowercompartment to compel air to repeatedl traverse the briquets upwardly, substantially as described. i Y

' ROBERT S.v PLUMMER. 

